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The Urinary System worksheet
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Lissa
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The Urinary System

1. The functions of the urinary system include elimination of __________ such as ___________________ _ wastes, __________, and drugs.

2. Kidneys also regulate ___________________ _, including water and ___________________ _ balance, and blood acid-base balance, along with __________ pressure, __________ production, and activation of ___________________ _.

3. The organs of the urinary System include:
___________________ _ (right and left)
___________________ _ (right and left)
___________________ _
___________________ _

4. The ______________ _______________ sits on top of the kidney.

5. The ________kidney is lower than the _________kidney.

6. A layer of fat, the ___________________ _ ___________________ _, cushions, protects, and supports each kidney.

7. The regions of the kidney include the
___________________ _-outer region
___________________ _-inside the cortex
___________________ _-inner collecting tube

8. Kidney structures include the
___________________ _- triangular regions of tissue in the medulla
___________________ _- extensions of cortex-like material inward
___________________ _ - cup shaped structures that funnel urine towards the renal pelvis

9. Blood flow in the kidneys starts in the ___________________ _ artery to the entire kidney. Blood flow to each nephron is through the ________________ _____________ ; the ball of capillaries in the nephron is the ___________________ _, and the ___________________ _ arteriole drains the nephron. The ___________________ _ __________ drains blood from the kidney.

10. The structural and functional units of the kidneys are the ___________________ _. The main parts are the blood-carrying ___________________ _ and the long, coiled __________ __________.

11. The parts of the ________________ ______________ are: the balloon-like ______________ __________, which captures filtrate from the glomerulus; the ___________________ _ ___________________ _ __________, which reabsorbs most materials; the __________ of __________ , which reabsorbs water and salt, making the urine more dilute; and the __________ ____________ __________, which accomplishes most acid-base and electrolyte balancing.

12. The ___________________ _ ___________________ _ accept the reabsorbed substances and return them to the general circulation.

13. The 3 urine formation processes are:
___________________ _, the formation of the fluid by the glomerulus;
___________________ _, the return of needed substances to the blood; and
___________________ _, the active removal of wastes from the blood (into the tubules).

14. The three nitrogenous wastes that are concentrated in the urine are:
___________________ _
___________________ _
___________________ _

15. The ___________________ _ drain urine from the kidney into the ___________________ _, where it is stored until it drains from the body through the ___________________ _, in an action called_____________ _______, which requires relaxation of both the internal and external
___________________ _ ___________________ _.

16. The ____________ _______________ ______________ is smooth muscle, so it is under __________ control; the _______________ _____________ ______________ is skeletal muscle, so it is under _____________ control.

17. Body fluids are either ___________________ _ _____________( inside of cells), or
___________________ _ __________(outside of cells). The main two types of this second fluid are: ___________________ _ __________, which surrounds your cells, and __________ __________ in the circulation.

18. Changes in ___________________ _ balance causes water to move from one compartment to another.  To maintain water balance, a ___________________ _ urine is produced if water intake is excessive.  Regulation of water and electrolyte reabsorption is primarily by _______________ secreted by the endocrine system, such as ________________ _______________ and __________________.

19. _________________ is responsible for urine’s yellow color; it is a breakdown product of __________ destruction.

20. Composition of blood depends mainly on _________, cellular _____________, and ___________________ ___.

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Reply# 1
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3 years ago

1. waste, nitrogenous, toxins
2. homeostasis, electrolyte, blood, urine, vitamin D
3. Kidneys, ureters, bladder, urethra
4. adrenal gland
5. right, left
6. adipose capsule
7. cortex, medulla, Renal pelvis
8. medullary pyramids, renal columns, calyces
9. renal, glomerulus, ?, efferent, renal veins
10. nephrons, glomerulus, ?

Hope some of this helps



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Reply# 2
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Rep:  +776  -3 
3 years ago

Are these answers to all of them?

Thanks for contributing Happy



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